ISPRS-Annals ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences ISPRS-Annals ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci. 2194-9050 Copernicus Publications Göttingen, Germany 10.5194/isprs-annals-V-2-2020-671-2020 COMPARISON OF SUBAQUATIC DIGITAL ELEVATION MODELS FROM AIRBORNE LASER SCANNING AND IMAGERY Mulsow C. 1 Mandlburger G. 2 3 Maas H.-G. https://orcid.org/0000-0001-9034-3469 1 Institute of Photogrammetry and Remote Sensing, Technische Universität Dresden, Germany Department of Geodesy and Geoinformation, TU Wien, Austria Institute of Photogrammetry, University of Stuttgart, Germany 03 08 2020 V-2-2020 671 677 Copyright: © 2020 C. Mulsow et al. 2020 This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/ This article is available from https://isprs-annals.copernicus.org/articles/V-2-2020/671/2020/isprs-annals-V-2-2020-671-2020.html The full text article is available as a PDF file from https://isprs-annals.copernicus.org/articles/V-2-2020/671/2020/isprs-annals-V-2-2020-671-2020.pdf

The paper describes and compares the workflows and results of generating digital elevation models (DEMs) of underwater areas from airborne laser scanning and aerial stereo images. Based on a combined laser scanning/image data set of an artificial lake, both methods are described and pros/cons are highlighted. The authors focus on the final results, especially on accuracy, completeness and spatial resolution of the underwater DEM’s. Further, practical aspects of processing and complexity of both methods are highlighted too.